Display apparatus

Abstract

A display apparatus includes: a rectangular display panel, which includes a screen frontward thereof; an optical sheet having a rectangular shape, which is arranged rearward of the rectangular display panel; a light guide plate having a rectangular shape, which is arranged rearward of the optical sheet; a light source, which is arranged to face a side surface of the light guide plate; and a first close contact prevention layer provided on a surface, facing the optical sheet, of the light guide plate, wherein the first close contact prevention layer comprises a first binder and a plurality of first beads dispersed in the first binder, and the plurality of first beads form a plurality of first protrusions for preventing close contact with the optical sheet, at a surface of the first close contact prevention layer.

What is claimed is: 
     
       1. A display apparatus, comprising:
 a rectangular display panel, which includes a screen frontward thereof; 
 an optical sheet having a rectangular shape, which is arranged rearward of the rectangular display panel; 
 a light guide plate having a rectangular shape, which is arranged rearward of the optical sheet; 
 a light source, which is arranged to face a side surface of the light guide plate; and 
 a first close contact prevention layer provided on a surface, facing the optical sheet, of the light guide plate, wherein 
 the first close contact prevention layer comprises a first binder and a plurality of first beads dispersed in the first binder, and 
 the plurality of first beads form a plurality of first protrusions for preventing close contact with the optical sheet, at a surface of the first close contact prevention layer. 
 
     
     
       2. The display apparatus according to  claim 1 ,
 wherein the first binder has a glass transition temperature of 30° C. or less. 
 
     
     
       3. The display apparatus according to  claim 1 ,
 wherein the plurality of first beads has a glass transition temperature of 30° C. or less. 
 
     
     
       4. The display apparatus according to  claim 1 , further comprising a second close contact prevention layer provided on a surface, facing the light guide plate, of the optical sheet, wherein
 the second close contact prevention layer comprises a second binder and a plurality of second beads dispersed in the second binder, and 
 the plurality of second beads form a plurality of second protrusions for preventing close contact with the light guide plate, at a surface of the second close contact prevention layer. 
 
     
     
       5. The display apparatus according to  claim 4 , wherein a first amount of protrusion of the plurality of first protrusions is smaller than a second amount of protrusion of the plurality of second protrusions. 
     
     
       6. The display apparatus according to  claim 5 , wherein the first amount of protrusion is more than 5 μm and 12 μm or less, and the second amount of protrusion is 0.8 μm or more and 7 μm or less. 
     
     
       7. The display apparatus according to  claim 1 , wherein the following expression is satisfied: 1<n 2 <n 1 , where n 1  represents a refractive index of the light guide plate, and n 2  represents a refractive index of the first binder. 
     
     
       8. The display apparatus according to  claim 1 ,
 wherein the light guide plate has scattering dots formed on a surface opposite to an exit surface facing the optical sheet, the scattering dots being configured to reflect light so as to be output through the exit surface.